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The proper method of
self-protection from radiological hazards depends on the specific hazard
encountered. If the primary danger is
from contamination by radioactive particles or dust, respiratory protection
is crucial to prevent ill effects.
Radioactive debris can be harmlessly washed from the surface of the
body, but inhalation of the same material can lead to internal contamination,
incorporation, and a range of acute or long-term health effects. Preventing deposition of radioactive
materials in the lungs is accomplished with a minimum of level C respiratory
protection. If an air purifying respirator
is used, it will provide additional protection if accompanied by filters
approved for radiological contaminants.
The filters should be considered contaminated after use, and the
respirator and all other equipment which entered the potentially “hot”
radiological environment must be scanned for contamination if it is to be
reused. Higher levels of protection,
including protective suits, will provide additional insurance against
responder contact with radioactive dust.
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